Yesterday i noticed a painless, hard lump near/in my anus. it feels itchy and tender after wiping. what could it be? it appeared after a constipation.

May be a hemorrhoid: With that description, the lump may be a hemorrhoid. A primary care doctor can examine the anus, rectum, and lump. With constipation, one pushes higher pressure into the anus and rectum, and the veins can swell up into a lump (called a hemorrhoid) that hurts, itches, burns, and sometimes bleeds. The doctor can offer treatment ideas after the exam. Meanwhile, avoiding constipation is helpful.